Features:- Desert Battle Colour : Colours matching the real colours used on the firearm that is used in late Middle East operations.- Parting Lines Finish：The parting lines resulting from moulding are carefully sanded by hand for a nice smooth finish.- Novak Officially Licensed Rear Sight：Replicating the widely used Novak tactical sight.- G10 Type Grip：The very typical grip from the M45A1 is replicated using a special printing system.- Under Rail : The under rail is molded into the frame and provides a 20mm picatinny rail in order to install a very large number of accessories.- Upgraded Internals & Mechanism：The blowback engine has been redesigned and provides a stronger recoil with the same amount of gas as the already existing Marui 1911 GBB.- The new short recoil system added to the M45A1 gives this new gun a very stable cycle.- Metal Notch Spacer：A metal piece inside the ABS slide will catch the slide stop when magazine empty. The ABS slide will not be wore off by a heavy use of the slide stop.- Diecast Magazine：The 27 rounds magazine is is made out of diecast metal and resist to low temperatures. (the M45A1 can use all previous 1911 series spare magazines)